Toshiba GRT100 Series Instruction Manual

Also see for GRT100 Series: Manual

Contents

 99 6 F 2 S 0 7 8 94.2.7.1 Setting the switchesThe automatic monitor function (A.M.F.) can be disabled by setting the switch [A.M.F] to"OFF".Disabling the A.M.F. prevents tripping from being blocked even in the event of a failure in theitems being monitored by this function. It also prevents failures from being displayed on the"ALARM" LED and LCD described in Section 4.2.1. No events related to A.M.F. are recorded,either.Disabling A.M.F. is useful for blocking the output of unnecessary alarms during testing.Note: Set the switch [A.M.F] to "Off" before applying the test inputs, when the A.M.F is disabled.The switch [Reset] is used to test the THR and V/F elements. When the switch [Reset] is set to"1", the time counting of inverse time characteristic can be forcibly reset.While the switch [A.M.F] is set to "0" or [Reset] is set to "1", the red "TESTING" LED is lit foralarm purposes.Caution: Be sure to restore these switches after the tests are completed.Disabling automatic monitoring Press 5 (= Test) on the top "MENU" screen to display the "Test" screen./ 1 T e s t1 = S w i t c h 2 =3 =B i n a r y o u t p u t4 =T i m e r L o g i c c i r c u i t Press 1 (= Switch) to display the "Switch" screen./ 2 S w i t c h 1 / 3A . M . F . 0 = O f f 1 = O n01R e s e t 0 = O f f 1 = O nI E C T S T 0 = O f f 1 = O n 1 Enter 0 for A.M.F to disable the A.M.F. and press theENTER key. Enter 1(=On) for IECTST to transmit ‘test mode’ to the control system by IEC60870-5-103communication when testing the local relay, and press theENTER key. Press theEND key to return to the "Test" screen.Resetting the time counting of THR and V/F elements Enter 1 for Reset to reset the time counting forcibly and press theENTER key. Press theEND key to return to the "Test" screen.4.2.7.2 Binary Output RelayIt is possible to forcibly operate all binary output relays for checking connections with theexternal devices. Forced operation can be performed on one or more binary outputs at a time foreach module. Press 2 (= Binary output) on the "Test" screen to display the "Binary output" screen.